I needed a priming horn for my flintlock rifle and couldn't find anything that I really liked. I had this old horn laying around and decided it could be something to learn on.

The horn was rough but the small size was what I needed so I started scraping. I used a piece of broken glass then a wood rasp to shape it.

When the shape was right, I found a scrap piece of Walnut for an end plug.
I should have used Pine as it's easier to work with but didn't didn't know until I had the Walnut fitted. Maybe I should have read up on horn making.

I needed a plug for the spout after drilling the hole and found an Oak dowel rod that would work. Again, maybe I should have used Pine. I turned it down on my belt sander so it wasn't too bad but I'm sure I'll end up making a couple more before the horn is finished.

I've been using sand paper then steel wool to work over any inperfections in the horn.

I still have some work to do such as wood pins to hold in the end plug and then fitting an end cap over the plug.

Looks great!!!
Doinin it yerself is the only way to make it yers. Like Todd said those were personal items, they were made and modified by the owner sometimes over a period of years round campfires. When yer done you defiantly won't be able to buy its like anywhere, and that will make it even better.
We used to have a couple to blow to call in the dogs durin a coon hunt.